4-Cylinder Marine Diesel Bare Engine Block - Used Core

Application: 4-cylinder inline marine diesel bare engine block / short-block casting, suitable as a rebuildable core for small marine auxiliary diesels (Yanmar 4JH, Kubota-based Universal/Westerbeke, Perkins 4.10x-class engines — to be verified). Condition: Used core with surface rust in bores and on machined surfaces; sold as-is for rebuild or core exchange. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.